Anti-shock dowel device

Abstract

The utility model relates to bridge damping technical field, concretely relates to a kind of anti-seismic mortise and tenon device, including mass block, and the one end of mass block along first direction is provided with damping support;Two sides of mass block along second direction are respectively provided with connecting beam;Upper mortise and tenon, upper mortise and tenon are connected to at least one side wall of mass block along third direction, and the one end of upper mortise and tenon along first direction towards damping support is provided with mortise groove;Lower mortise and tenon, the one end of lower mortise and tenon close to upper mortise and tenon is provided with tenon head, and tenon head is embedded mortise groove, and tenon head and mortise groove between filling have viscoelastic material;The one end of lower mortise and tenon away from upper mortise and tenon is used to and the bottom plate of box girder connection.The utility model can overcome the existing damping mortise and tenon device only simple concave-convex cooperation is used and is installed in box girder side or beam end, leading to upper mortise and tenon and lower mortise and tenon permanent deformation is prone to occur even structural damage, and the technical problem of low energy consumption efficiency.

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